From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from NAM10-BN7-obe.outbound.protection.outlook.com (mail-bn7nam10on2061.outbound.protection.outlook.com [40.107.92.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5701B23A58E; Fri, 25 Jul 2025 10:30:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.92.61 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753439430; cv=fail; b=rTmJ90lZluBNiFAj2iap+xZrP0SCsLvIoHW9RM2H6F/CIaQwY4DuErI1iVabvWPwrLE+MELBKFIdPBVD67Drk3nmuWPy21OQGTmBKMLBEVnGN1uuEYN37ws0hi+m7wqq+PHSFt7fNXMGcUZbsOgXXN2+dOBOmitDITyy32AlIA4= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753439430; c=relaxed/simple; bh=h9SU1o/XB9HDwzVdbnQ5UcuuMwLF54KRkqu6mQ6ty7g=; h=Message-ID:Date:MIME-Version:Subject:To:CC:References:From: In-Reply-To:Content-Type; b=DZxybw4PdB986dqJBkroS87PniG1bz/iGxO/smz4Vt0PiR8mzPqQmjnFlgZlOGtilsTxMk+vgOPHygEQKD/J74LgISFfxlf9Q38o8sneBM/yxmf5rdpLzBpmT9G2uONknZMjDsA6yRndh1pGNyPgfvMPTouNQtTwgieRMDWNys0= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=VI+ymDUw; arc=fail smtp.client-ip=40.107.92.61 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="VI+ymDUw" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=Nrz6LKXcTfXlBZZoXIEbemzntnK+mvW1X8YgMfw+9UBW0Y3PhbH5CFokc+kFkxi5cwAce3VbTcIhwp2tcWlXXZEbBMDmqw8CJgUSpzeL+wOYsrBMcl+Yq4tycwL4HW9iPtQ8lrbSfMrc3KxX0vVlVf1yPCrZe/g0In/6HCuK0SA8ZqQiyNjMtosh30dNgkw57x9HqWrw7SK7WygB0q8ChlG95rg60Dx9rVikEYHdco/k6tNaitKvn1rzh6iuu7Jglgtx0jDr4BFuho/JA4htf3E7aRaEHOcWOxjKb7EamP5MNXElhrGmGnkkrj7IcMfcTMJ27OcBrJsZS/w15jHfqg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=8nhFfNR5zcmFKfQh+8a8SmWgpPgY+1vSOvsOG6LYD6Q=; b=fXlXhcqemFR6IfY1qObgqAAtCJpvqIeETkWKoFA9gXWfgsTngb/U5rPA6cK0NRf95QWKrNw5XJMBTXCFEYVSpRsX3g2Gusq9q7RgVKzadAZbOPfTC9XndwnNAiAS/2pWZDUjOjgEMMr28s88gvp8cU27CbqD1BBuJaxEkltDGt5tpAgabBOpcb858EkwG5QRG3UUBWD85uFXghhjpDhyD83brpsfjwWMre/N1TSzd8GG3HFp5rsICHyNDy35nkoXQ19AYSqhyAuZxlhdE4TlXIyBI8arkC+8iH5RIUZwbHTFVYw5PK1l36rqbrWIAvfQbEVJXtLUYaPwXoAV0I69QQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=8bytes.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=8nhFfNR5zcmFKfQh+8a8SmWgpPgY+1vSOvsOG6LYD6Q=; b=VI+ymDUwe0iFxSc+0ZO/5w3CnKWnAPYfq/eUr+pHq8XsnBE3Rh1/PvJ0tKxOpUlX44tl9TDeKxvacqsxeu2iyC0AtmBBe0d2yttkwmLoLrtv5V3mdVdzXrbMDkqAaCv2HR7T67FfWkYuNe4l0Y/YJA0uw8b2ftcrqgnb/u+Mc/U= Received: from SJ0PR03CA0029.namprd03.prod.outlook.com (2603:10b6:a03:33a::34) by LV3PR12MB9438.namprd12.prod.outlook.com (2603:10b6:408:212::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8964.22; Fri, 25 Jul 2025 10:30:24 +0000 Received: from CO1PEPF000075F2.namprd03.prod.outlook.com (2603:10b6:a03:33a:cafe::aa) by SJ0PR03CA0029.outlook.office365.com (2603:10b6:a03:33a::34) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.8964.22 via Frontend Transport; Fri, 25 Jul 2025 10:30:24 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by CO1PEPF000075F2.mail.protection.outlook.com (10.167.249.41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8964.20 via Frontend Transport; Fri, 25 Jul 2025 10:30:24 +0000 Received: from [10.136.41.253] (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Fri, 25 Jul 2025 05:30:19 -0500 Message-ID: <2f9252d0-17f2-4466-bffa-9da02d48f989@amd.com> Date: Fri, 25 Jul 2025 16:00:16 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 3/4] crypto: ccp: Skip SEV and SNP INIT for kdump boot To: Ashish Kalra , , , , , , CC: , , , , , , , , , , References: Content-Language: en-US From: Sairaj Kodilkar In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF000075F2:EE_|LV3PR12MB9438:EE_ X-MS-Office365-Filtering-Correlation-Id: 227fa48c-39e8-46d1-20f2-08ddcb6643ea X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|36860700013|82310400026|1800799024; X-Microsoft-Antispam-Message-Info: =?utf-8?B?dzJqTVVJUjQ5aUgrOFhCUXVHVmdzeWNiajZVSmRYd0hFNE1ic2hLQ09jZXEz?= =?utf-8?B?bkRob0pZQWoyVWxCZVIzc1hXNURONkcyOGxQTHU3c3ZGdlUrVTF0eUFEcFhR?= =?utf-8?B?SlgrUlYvQVdtaVZxMi96Z2ZVY2VrYVB6a1RoNmNZK1JNT01USCthRnMzT3Vp?= =?utf-8?B?NUJ1SEU5ejhGUXhDT2pZQ1dLSVlFeHoyeDVCa1hqMnpQSHY2TjU3MHo4RGsw?= =?utf-8?B?RzVhUEZxMmxYcUFqNC93Ui81anZFUUNJN0w3aHlxZUcxdTIxU0IxeUlJNmVO?= =?utf-8?B?ek5sWHR3U3lsNGM1TkhtUGpnUU4rdStJQjQ3elhMMlFnd2plMCtiVitoYVFi?= =?utf-8?B?WldHTDJ0eGUzdllpQmtCVzRyR2VCSWdFajh6NWExNVczZHdBKzB6aDJyaFFB?= =?utf-8?B?dnBqcC9oQ2VpL3hTeEtoUDE4dzM1NFdWVmJXRm9wUW5oOW1EN1RTMWM3eTRo?= =?utf-8?B?S1RGaTFiTzRyMFVxT2IxYXZ0ZCt4NldpdlRCeUhPYkhFSVlPTE1aUlBMVFN6?= =?utf-8?B?QVNKWnZ6azZDa1dEbDhJMlN5eGQ0Ryt3UGh5MjlKOFhwdlB0S0JVemRnZ0pR?= =?utf-8?B?eVVJeDJ0M1ErWWs2UzdFNVVFVmJjUzh4ZitnQkVzNjg1d3lEYXV4S09mMlN2?= =?utf-8?B?TGZOaXFZNTNWZVAzQ1VrYWQ0MlZwbUlFcnYxblVDdmRxc1EwVjBCZzdlUkIz?= =?utf-8?B?dEZnYWJTcVcvODJxNEJCV1RPY1Vjc0VrOVZQNEUvT3JLVkNsRnovcmVsK1JW?= =?utf-8?B?bDNNK0N0cHQxbVYxdTVMQkhLZFNVM2V6SVNQL21qRGdTVmVQeVB0UlY3OGdS?= =?utf-8?B?KzN3RUVRZHp1UmVrVG1EQ3Y0Yk9ndktSNXVVdERPNWMvMWNTMFg5QlhzUGJB?= =?utf-8?B?K2VKdlJxSzFpRmorVndZdVVmSFdnVWgvM0NnckszQXlIaXFTeFVOaDdTU1VK?= =?utf-8?B?QzMrVXNrQlg5VnlndEl1M0pnQ3ZCZmxnQ0k4bGlYT2hLcWtWblBnczF5RDZU?= =?utf-8?B?YVdsTDZDb3RVN1FxMWdxVUhWYmRqU3hjckl6b0lmVlZyd0tjWlVUQ0xYUXRQ?= =?utf-8?B?SnoyYWVjQWcrRFdwRWdXdW5yS2IyNzZ0UVRBTjRQVjNrWGhrWDFid1MrVnFS?= =?utf-8?B?MzU1WjVadjRobHJHWXFCUHAwTWo4OUIwNUxCdWhaa01WRDlJUnozK1FmVUpQ?= =?utf-8?B?ZWNSR2QyOXhPUkQ4UmRMcWh1UCtkSXVHek1XWk5Bb2VEVDdrY0ZYZFd2Q21W?= =?utf-8?B?UjJYTjRZa1ZER2tha01nZUNPWm1QQ1dEWU5PVlFnV0s4QzlBNTEwR2xhQlZk?= =?utf-8?B?SlY3ZWdFV21IVVliNkhWSkhGUUI5ajhBWlMrZ05ML3RNeTFYUU1qZnkrMTBw?= =?utf-8?B?VUl5M3Myb3FGQzJ1UHg1OFJhejlNR2t4NWkyMXJHSGlEK0RyWGhQWDJKZDRl?= =?utf-8?B?eXlkc0JzVW5sZWpOTFlmSkFNeEhFbEZoWFNvUXRGS3FjVUdjem5HNjd0ZlJ4?= =?utf-8?B?elFaS2R2dG83dGxib1A0bnF3WkdQV1FGRFRQUkFrK2hhV0sxY3E4VHJ4TEFC?= =?utf-8?B?UGp3RFRncEVoZC96UnZQbDNsNnFwWTlVTVM3RkhFWW0yZHRRVmE2Q2FwdEdN?= =?utf-8?B?bWpJc3dld3dwdGI2N1RZdDNqOVBmUkZkY211Tk5PSlRVWmlaaVhseUFWMXg4?= =?utf-8?B?YnMxbjJZNzYvK2hWcHVwYU5zUXJPVDRSaStsTll2TlhJYjVKUjcweFE0VUc0?= =?utf-8?B?M3J5VHptVFRVbElFRUY4ZGtTV1oyN2Fra0ZJMXlFTXNJQUorVE1lNHJKclpr?= =?utf-8?B?TlFCYnJLWFpjWHBWakYvMURtcUk3cjFPTEdMOUgza3hJYzJRaEdOZ0RZWS9Q?= =?utf-8?B?QjJ5ZGZQQUQxZ09INGxIZjRNUVdmU0ZnNytZSHdVRStUdUIwTExjbG90V3lW?= =?utf-8?B?WjR3SklsZTdBcWtDZnVOenNXYkFXOTk4NFlvcWZOd3h1dWVDU2NNTThueHhi?= =?utf-8?B?TERxeWxkY3c2Vk9Cenk5ZnhGWUpyU21iV2pyZU9wdUQvVjhUV0cxeUtjLzRX?= =?utf-8?Q?JKky8c?= X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(376014)(7416014)(36860700013)(82310400026)(1800799024);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Jul 2025 10:30:24.1654 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 227fa48c-39e8-46d1-20f2-08ddcb6643ea X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000075F2.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV3PR12MB9438 On 7/22/2025 3:23 AM, Ashish Kalra wrote: > From: Ashish Kalra > > If SNP is enabled and initialized in the previous kernel then SNP is > already initialized for kdump boot and attempting SNP INIT again > during kdump boot causes SNP INIT failure and eventually leads to > IOMMU failures. > > For SEV avoid SEV INIT failure warnings during kdump boot if SEV > is enabled and initialized in the previous kernel. > > Skip SNP and SEV INIT if doing kdump boot. > > Signed-off-by: Ashish Kalra Tested-by: Sairaj Kodilkar